The melody comes from the State Anthem of the Soviet Union, which was adopted in 1944. Online, short instrumental snippets of the anthem became popular in meme culture because the tune is widely recognizable even without lyrics. Creators use it as a fast audio shorthand for Soviet references, exaggerated patriotism, cold-war jokes and deadpan political humor. Its staying power comes from that immediate recognition: a second or two is often enough for viewers to understand the joke and the intended visual theme.